(19)
(11) EP 0 272 889 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.05.1990 Bulletin 1990/20

(43) Date of publication A2:
29.06.1988 Bulletin 1988/26

(21) Application number: 87311160.3

(22) Date of filing: 18.12.1987
(51) International Patent Classification (IPC)4C07C 233/65, C10L 1/22
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 22.12.1986 GB 8630594

(71) Applicant: EXXON CHEMICAL PATENTS INC.
Linden, New Jersey 07036-0710 (US)

(72) Inventors:
  • Lewtas, Kenneth
    Wantage Oxfordshire OX12 9EX (GB)
  • Lehmann, Edward William
    Faringdon Oxfordshire SN7 8HX (GB)
  • Gillingham, David Paul
    Swindon Wiltshire SN5 8QU (GB)
  • Maddox, John Edward
    Swindon Wiltshire SN5 7BQ (GB)

(74) Representative: Bawden, Peter Charles et al
EXXON CHEMICAL LIMITED Exxon Chemical Technology Centre PO Box 1
Abingdon Oxfordshire OX13 6BB
Abingdon Oxfordshire OX13 6BB (GB)


(56) References cited: : 
   
     
    Remarks:
    Claim for the following Contracting State: ES.
     


    (54) Aromatic polycarboxylic-acid amides, and their use as fuel additives


    (57) A compound of the general formula

    where X is CONR2 or CO2- +H2NR2 Y and Z are CONR2, C02R, OCOR, -OR, -R. -NCOR one of Y or Z may be zero and R is alkyl, alkoxy alkyl or polyalkoxyalkyl containing at least 10 carbon atoms





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